C13
"Putong, putong!" Uncle Chen's heart was beating rapidly. He and another security guard, Wang Shuang Ning, were rushing down the stairs from the second floor to the third floor. They did not take the elevator, but took the emergency exit stairs instead!
For some reason, Uncle Chen had an instinctual fear of the elevator. Last night, Sima Ming and this afternoon, the boss, Wan Jinyun